"Hichki" director Siddharth P Malhotra said in a statement: "Brad's life story is now a Bollywood movie and, of course, he is thrilled to see his journey releasing in India.

Rani has read Brad Cohen's book 'Front of the Class: How Tourette Syndrome Made Me the Teacher I Never Had' and has researched the story of his life thoroughly for authentic portrayal of her character.

"Rani wants Brad and his students to watch the film and she will be organising a special screening for him and his students.

The actress will be seen as Naina Mathur who has Tourette Syndrome, which forces an individual to make involuntary repetitive movements or sounds.

"Hichki" focusses on turning disadvantages into opportunities and staring down at challenges that life throws at one and ultimately winning over them. Produced by Maneesh Sharma under the Yash Raj Films banner, the movie is set to touch the hearts of audiences when it releases on March 23.